<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <style>
    table {
      width: 600px;
      text-align: center;
    }

    table,
    th,
    td {
      border: 1px solid #ccc;
      border-collapse: collapse;
    }

    caption {
      font-size: 18px;
      margin-bottom: 10px;
      font-weight: 700;
    }

    tr {
      height: 40px;
      cursor: pointer;
    }

    table tr:nth-child(1) {
      background-color: #ddd;
    }

    table tr:not(:first-child):hover {
      background-color: #eee;
    }
  </style>
</head>

<body>
  <h2>学生信息</h2>
  <p>将数据渲染到页面中...</p>

  <table>
    <caption>学生列表</caption>
    <tr>
      <th>序号</th>
      <th>姓名</th>
      <th>年龄</th>
      <th>性别</th>
      <th>家乡</th>
    </tr>
    <script>
      let students = [
        { name: '小明', age: 18, gender: '男', hometown: '河北省' }, //===e
        { name: '小红', age: 19, gender: '女', hometown: '河南省' },
        { name: '小刚', age: 17, gender: '男', hometown: '山西省' },
        { name: '小丽', age: 18, gender: '女', hometown: '山东省' }
      ]
      // for (let [i, e] of students.entries()) {
      //   console.log(i);  //索引 下标
      //   console.log(e.name);  // 每个对象
      // }
      // for (let i = 0; i < students.length; i++) {
      //   console.log(students[i]);
      //   console.log(i);
      //   console.log(students[i].name);

      // }

      for (let [i, e] of students.entries()) {


        // i 为索引下标
        //  e为数组里面的元素
        document.write(`
         <tr>
      <th>${i + 1}</th>  
      <th>${e.name}</th>
      <th>${e.age}</th>
      <th>${e.gender}</th>
      <th>${e.hometown}</th>
    </tr>
    <br>    
    `)
      }
    </script>
</body>

</html>